حاصل عبارت مقابل را به دست آورید: $rac{(3^{2})^{2} imes 9^{4} imes 27^{4}}{(-81)^{3}} = rac{3^{6} imes (3^{2})^{8} imes (3^{3})^{4}}{(-3^{4})^{9}} = rac{3^{6} imes 3^{16} imes 3^{12}}{(-3^{4})^{9}} = rac{3^{6+16+12}}{-3^{36}} = -rac{3^{34}}{3^{36}} = -rac{1}{3^{2}} = -rac{1}{9}$